Staging: iio: meter: ade7753: Merged assignment with immediately following return statement

Author: Tina Johnson <tinajohnson.1234@gmail.com>

Saved one line of code by merging the assigning and return statements
of variable ret. And thus removed variable len which was no longer useful.

This patch was done using Coccinelle script and the following semantic
patch was used:

@@
expression ret;
identifier f;
@@

-ret =
+return
      f(...);
-return ret;

Signed-off-by: Tina Johnson 
Acked-by: Julia Lawall 
Acked-by: Josh Triplett 
Signed-off-by: Greg Kroah-Hartman 
---
 drivers/staging/iio/meter/ade7753.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
 
diff --git a/drivers/staging/iio/meter/ade7753.c b/drivers/staging/iio/meter/ade7753.c
index 00492ca..7161c61 100644
--- a/drivers/staging/iio/meter/ade7753.c
+++ b/drivers/staging/iio/meter/ade7753.c
@@ -377,7 +377,7 @@ static ssize_t ade7753_read_frequency(struct device *dev,
 		struct device_attribute *attr,
 		char *buf)
 {
-	int ret, len = 0;
+	int ret;
 	u16 t;
 	int sps;
 	ret = ade7753_spi_read_reg_16(dev, ADE7753_MODE, &t);
@@ -387,8 +387,7 @@ static ssize_t ade7753_read_frequency(struct device *dev,
 	t = (t >> 11) & 0x3;
 	sps = 27900 / (1 + t);
 
-	len = sprintf(buf, "%d\n", sps);
-	return len;
+	return sprintf(buf, "%d\n", sps);
 }
 
 static ssize_t ade7753_write_frequency(struct device *dev,